Calculate. One kilogram of coal releases about 8×10⁶ J when burned. If the Sun ...
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Calculate. One kilogram of coal releases about 8×10⁶ J when burned. If the Sun (M⊙ ≈ 2×10³⁰ kg) were made of coal, how long (in years) could it provide luminosity L⊙ ≈ 4×10²⁶ W? Enter an approximate number of years.
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